we still plan to release TestRail at the end of Q3 2009, but the beta (which should hopefully be already very usable and complete) will probably start next week. We will announce how to join the beta test on our blog and on this website .
Regarding the pricing: TestRail will be licensed per user and the price will be suitable for small to medium sized teams/companies. I.e., TestRail won't be priced for enterprise teams as other test management vendors do, so you won't see a $500/user price tag with us.
I hope this clears things up and we would be happy to have you join the beta!